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The reaction of the phosphorus trihydrazide, (S)P[N(Me)-NH2]3(1) with quinoline-2-carboxaldehyde (C9H6N-2-CHO) in a 1 : 3 ratio afforded a trishydrazone, (S)P[N(Me)-NCH-2-C9H6N]3(2). Crystals of 2were grown in three different solvent media affording an unsolvated (2, monoclinic, P21/n) and two solvated (2·3H2O, trigonal, R3 and 2·2CH3OH, triclinic, P1) crystal forms. Each of these, while possessing an essentially similar molecular structure, adopt different crystal packing giving rise to supramolecular structures mediated by a variety of weak interactions: O–H–N, O–H–O, C–H–N, C–H–O, C–H–S, C–H–π, π–π, N–π and S–π. The reaction of 2with Ag(ClO4)2·6H2O in methanol afforded a dinuclear cationic cage [Ag{(S)P[N(Me)-NCH-2-C9H6N]3}·ClO4]2(3). The molecular structure of 3reveals a dimeric structure consisting of two AgIions that are held together by two ligands. Only two arms of the tris hydrazone ligand are involved in coordination while an unprecedented PS→AgIcoordination is seen. This results in the formation of an Ag2S2dimer that is encapsulated by two trishydrazone ligands. Both compounds 2and 3are photoluminescent. [ABSTRACT FROM AUTHOR]

Three new Cu–Ln cage complexes bridged by phosphonates and acetates are reported; one—a Cu24Dy8cage—is a new single molecule magnet (SMM). [ABSTRACT FROM AUTHOR]

Two new iron(III)-potassium phosphonate cage complexes with {K(2)Fe(6)} and {K(2)Fe(4)} cores are reported. Magnetic studies reveal antiferromagnetic interactions between the Fe(III) centres occur in these cages.

The reaction of the phosphorus trihydrazide, (S)P[N(Me)-NH(2)](3) (1) with quinoline-2-carboxaldehyde (C(9)H(6)N-2-CHO) in a 1:3 ratio afforded a trishydrazone, (S)P[N(Me)-N=CH-2-C(9)H(6)N](3) (2). Crystals of 2 were grown in three different solvent media affording an unsolvated (2, monoclinic, P2(1)/n) and two solvated (2·3H(2)O, trigonal, R3 and 2·2CH(3)OH, triclinic, P ̅1) crystal forms. Each of these, while possessing an essentially similar molecular structure, adopt different crystal packing giving rise to supramolecular structures mediated by a variety of weak interactions: O-H-N, O-H-O, C-H-N, C-H-O, C-H-S, C-H-π, π-π, N-π and S-π. The reaction of 2 with Ag(ClO(4))(2)·6H(2)O in methanol afforded a dinuclear cationic cage [Ag{(S)P[N(Me)-N=CH-2-C(9)H(6)N](3)}·ClO(4)](2) (3). The molecular structure of 3 reveals a dimeric structure consisting of two Ag(I) ions that are held together by two ligands. Only two arms of the tris hydrazone ligand are involved in coordination while an unprecedented P=S→Ag(I) coordination is seen. This results in the formation of an Ag(2)S(2) dimer that is encapsulated by two trishydrazone ligands. Both compounds 2 and 3 are photoluminescent., (This journal is © The Royal Society of Chemistry 2011)

The synthesis and structure of a novel decanuclear copper(II) cage is reported. The assembly of the cage is facilitated by the cumulative coordinative interaction of tert-butyl phosphonate, 2-pyridylpyrazole and hydroxide ligands with copper(II) ions. Magnetic studies of this decanuclear copper(II) cage indicate complex antiferromagnetic behaviour.

A 1:2 reaction of Ph3SnOSnPh3 1 with RfCOOH 2 leads to the formation of [Ph2Sn(OH)OC(O)(Rf)]2 3, by means of a facile Sn-C bond cleavage process.